Patent · US Expired

Method for changing the boundary surface tension of a liquid glass piece and apparatus for performing said method

US7107791B2 · kind B2 · utility

0Cited by

4References

13Claims

0Family size

Assignee

Schott AG · DE

Inventors

Ulrike Stoehr · Mainz, DE
Olaf Claussen · Munster, DE
Ralf Werner · Hilden, DE

Key dates

Filing date	Jan 21, 2003
Grant date	Sep 19, 2006
Priority date	—
Expiry date	Mar 5, 2024

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC03B19/00
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

The process according to the invention reduces the effort required to shape a glass piece. In this process a liquid glass piece is provided on a structured supporting surface of an electrically conducting base. A voltage is applied across the liquid glass piece by connecting a voltage source between a contact position on the liquid glass piece and the electrically conducting base. The apparatus for performing the process has an electrically conducting base on which the liquid glass piece is supported and a device for applying a voltage between a contact position on the liquid glass piece and the electrically conducting base.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.